Airtac SAIJ50 Adjustable Cylinder SAIJ50BX800-30S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX800-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 800mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke800 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX800-30S
The AirTAC SAIJ50X800-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 982N of push force at 0.5 MPa and provides a usable travel window of 770-800mm, letting you dial back the nominal 800mm stroke by up to 30mm during commissioning. Equipped with a SUS304 stainless steel rod and a PT tapered port, it includes a magnet for CMSE and DMSE sensors.
This extruded aluminum profile cylinder omits the FB, CA, CB, and CR mounts, utilizing a reduced ISO 15552 mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position without requiring external stops, while the variable air cushions handle deceleration.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX800-30S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX800-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 800 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50BX800-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×800 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX800-30S Is Used
Variable End-Stop Tuning
Dial in the exact retract distance within the 770-800mm window during machine setup, allowing precise positioning without physically remounting the cylinder.
Product Size Changeover
Quickly adjust the stroke by up to 30mm on a packaging line to accommodate different product lengths, minimizing downtime between production runs.
Long-Stroke Assembly Press
Leverage the 982N push force and SUS304 rod for long-travel pressing tasks where the final end position requires fine-tuning at commissioning.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX800-30S the Right Cylinder?
Select this 50mm bore when you need precise end-position tuning on an 800mm stroke, avoiding the need to swap cylinders during product changeovers. If your application requires less force, stepping down to a 40mm bore yields 628N at 0.5 MPa; for heavier loads, a 63mm bore provides 1559N. Because this cylinder features an 800mm stroke, an external guide is highly recommended to manage side loads and prevent rod binding over long unsupported travel.
To match this exact configuration for an ISO 15552 replacement, specify the 50mm bore, 800mm stroke, 30mm adjustment, PT port thread, and the -S magnet. Remember that the rear adjuster is a travel stop, not a lock; if your machine requires load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder instead.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX800-30S FAQ
At 0.5 MPa operating pressure, this 50mm bore cylinder provides 982N of push force and 825N of pull force. At its maximum 1.0 MPa pressure, it can deliver up to 200 kgf.
The rear adjuster screw allows you to shorten the effective travel from the nominal 800mm down to 770mm. It functions as a mechanical stop to set the end position, but it is not a lock and will not hold the load without continuous air pressure.
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